Method of transmitting and receiving data and display device using the same

ABSTRACT

A method of transmitting and receiving data between a mobile terminal and a display device is provided. The method establishes network connection for communication with the mobile terminal, detects a touch location of the mobile terminal when the mobile terminal touches the display device, designates a first region corresponding to the touch location to the mobile terminal when the touch of the mobile terminal is ended, and transmits data corresponding to an object to the mobile terminal when the object displayed on a screen moves to the designated first region.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority under 35 U.S.C. 119 and 35U.S.C. 365 to U.S. Provisional Application No. 61/442,810 (filed on 15Feb., 2011) and Korean Patent Application No. 10-2011-0071105 (filed on18 Jul., 2011), which are hereby incorporated by reference in theirentirety.

BACKGROUND

The present disclosure relates to a method of transmitting and receivingdata between a display device and a mobile terminal.

Mobile terminals are portable devices that are capable of being carriedby a user and are configured to perform at least one of the followingfunctions: a function of performing voice call and/or video call; afunction of inputting/outputting information; and/or a function ofstoring data.

As the functions of mobile terminals are further diversified, the mobileterminals progressively have a plurality of complicated functions suchas a function of capturing a picture or a moving image, a function ofreplaying a music file or a video file, a function of playing a game, afunction of receiving broadcast, a function of accessing wirelessInternet, etc. That is, the mobile terminals are realized as multimediaplayers.

SUMMARY

Embodiments provide a user interface which can efficiently control datacommunication between a display device and a mobile terminal.

One innovative aspect of the subject matter described in thisspecification is embodied in methods that include the actions of:establishing a communication connection with a mobile terminal;detecting a touch location on a display surface of the display device atwhich the mobile terminal touches the display device; designating, at anarea of the display surface of the display device, a first regioncorresponding to the touch location; determining that an objectdisplayed on the display surface of the display device is moved into thedesignated first region; and transmitting data, corresponding to theobject, to the mobile terminal based on the determination that theobject is moved into the designated first region.

Other embodiments of these aspects include corresponding systems,apparatus, and computer programs, configured to perform the actions ofthe methods, encoded on computer storage devices. A system of one ormore computers can be so configured by virtue of software, firmware,hardware, or a combination of them installed on the system that inoperation cause the system to perform the actions. One or more computerprograms can be so configured by virtue having instructions that, whenexecuted by data processing apparatus, cause the apparatus to performthe actions.

These and other embodiments may each optionally include one or more ofthe following features. For instance, detecting a touch location on adisplay surface of the display device at which the mobile terminaltouches the display device may include detecting that the mobileterminal touches the display device for at least a threshold amount oftime.

Additionally or alternatively, detecting a touch location on a displaysurface of the display device at which the mobile terminal touches thedisplay device may include detecting that the mobile terminal touches aregion of the display surface of the display device where no object isdisplayed. Moreover, designating a first region, corresponding to thetouch location, to the mobile terminal on the display surface of thedisplay device may include designating, based on detecting that themobile terminal touches a region of the screen of the display devicewhere no object is displayed, a first region, corresponding to the touchlocation, to the mobile terminal on the display surface of the displaydevice, and not designating an area of the display surface as the firstregion corresponding to the touch location when detecting that themobile terminal touches a region of the screen of the display devicewhere an object is displayed.

Additionally or alternatively, the method may further include storing alocation of the designated first region and identification informationof the mobile terminal in association with each other. Also, the methodmay further include displaying a graphical representation correspondingto the mobile terminal in the first region on the display surface of thedisplay device.

Additionally or alternatively, the method may further include detectingthat the communication connection between the mobile terminal and thedisplay device is ended, and removing, based on detecting that thecommunication connection between the mobile terminal and the displaydevice is ended, the graphical representation of the mobile terminalfrom the display surface of the display device.

Additionally or alternatively, the method may further includedetermining whether the communication connection between the mobileterminal and the display device is active or inactive. Moreover,displaying a graphical representation of the mobile terminal in thefirst region on the display surface of the display device may includedisplaying a first graphical representation of the mobile terminal whenit is determined that the communication connection between the mobileterminal and the display device is active and displaying a secondgraphical representation of the mobile terminal when it is determinedthat the communication connection between the mobile terminal and thedisplay device is inactive.

Additionally or alternatively, the method may further include receivinga user input corresponding to a command to change a size of thedisplayed first region, and updating, based on the received user input,the display of the graphical representation to change the size of thedisplayed first region.

Additionally or alternatively, the method may further include: detectinga touch location on a display surface of the display device at which asecond mobile terminal touches the display device; designating, at anarea of the display surface of the display device, a second regioncorresponding to the touch location of the second mobile terminal;determining that a second object displayed on the display surface of thedisplay device is moved into the designated second region; andtransmitting data, corresponding to the second object, to the secondmobile terminal based on the determination that the second object ismoved into the designated second region.

Additionally or alternatively, the method may further includedetermining that the first and second regions at least partially overlapwith each other; determining that a third object displayed on thedisplay surface of the display device is moved into an area of overlapbetween the first region and the second region; transmitting datacorresponding to the third object to the first and second mobileterminals based on the determination that the third object is moved intothe area of overlap between the first region and the second region.

Additionally or alternatively, the detecting the touch location on thedisplay surface of the display device at which the mobile terminaltouches the display device may include detecting the touch location onthe display surface of the display device at which the mobile terminalphysically contacts the display device.

Additionally or alternatively, the method may further includedetermining that a rear of the mobile terminal is touching the displaydevice, wherein detecting touch location on a display surface of thedisplay device at which the mobile terminal touches the display deviceincludes detecting a location at which the rear of the mobile terminaltouches the display device, the rear of the mobile terminal being theside of the mobile terminal opposite a display interface of the mobileterminal.

Additionally or alternatively, the method may include determining that afront of the mobile terminal is touching the display device, the frontof the mobile terminal being the side of the mobile terminalcorresponding to a display interface of the mobile terminal, whereindetecting touch location on a display surface of the display device atwhich the mobile terminal touches the display device includes detectinga location at which the rear of the mobile terminal touches the displaydevice; and receiving, by utilizing the designated first region, datafrom the mobile terminal.

Additionally or alternatively, the method may include detecting a touchlocation on a display surface of the display device at which the mobileterminal touches the display device includes determining the touchlocation on the display surface of the display device at which themobile terminal touches the display device by using at least one of atouch sensor, an Near Field Communication (NFC) tag, or a catadioptriccamera included in the display device.

Another innovative aspect of the subject matter described in thisspecification is embodied in a display device that includes: a displayunit configured to display a plurality of objects on a screen; a controlunit; and a communication interface. The control unit is configured toperform any combination of the following operations: detect a touchlocation on a display surface of the display device at which a mobileterminal touches the display device; designate, at an area of thedisplay surface of the display device, a first region corresponding tothe touch location; and determine that an object displayed on thedisplay surface of the display device is moved into the designated firstregion. The communication interface is configured to establish acommunication connection with the mobile terminal and transmit data,corresponding to the object, to the mobile terminal based on thedetermination that the object is moved into the designated first region.

The details of one or more implementations are set forth in theaccompanying drawings and the description below. Other features will beapparent from the description and drawings, and from the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram illustrating a configuration of a system fortransmitting and receiving data.

FIG. 2 is a block diagram illustrating a configuration of a displaydevice.

FIG. 3 is a block diagram illustrating a configuration of a mobileterminal.

FIG. 4 is a flowchart illustrating a method of transmitting andreceiving data.

FIG. 5 is views illustrating front and rear views of a mobile terminal.

FIG. 6 is a view illustrating a screen configuration of a displaydevice.

FIG. 7 is a view illustrating a first a method for designating aspecific region of a screen of a display device to a mobile terminalaccording to a touch location of the mobile terminal.

FIG. 8 is a view illustrating a first a method for transmitting andreceiving data by using a region designated to a mobile terminal.

FIG. 9 is a view illustrating a first a method for displaying a region,designated to a mobile terminal, on a screen of a display device.

FIGS. 10 to 12 are views illustrating a method for managing a regiondesignated to a mobile terminal according to a network connection state.

FIG. 13 is a view illustrating a method for moving a region designatedto a mobile terminal according to a user input.

FIG. 14 is a view illustrating a method for adjusting the size of aregion designated to a mobile terminal according to a user input.

FIGS. 15 to 18 are views illustrating a method for designating regionsof a screen of a display device to mobile terminals to transmit andreceive data.

FIG. 19 is a view illustrating a second method for designating aspecific region of a screen of a display device to a mobile terminalaccording to a touch location of the mobile terminal.

FIG. 20 is a view illustrating a second method for transmitting andreceiving data by using a region designated to a mobile terminal.

FIG. 21 is a view illustrating a second method for displaying a region,designated to a mobile terminal, on a screen of a display device.

FIGS. 22 to 30 are views illustrating a first configuration of a mobileterminal and a display device that perform a method of transmitting andreceiving data.

FIGS. 31 to 34 are views illustrating a second configuration of a mobileterminal and a display device that perform a method of transmitting andreceiving data.

FIGS. 35 to 41 are views illustrating a third configuration of a mobileterminal and a display device that perform a method of transmitting andreceiving data.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Hereinafter, a method of transmitting and receiving data and a displaydevice and a mobile terminal using the same will be described in detailwith reference to the accompanying drawings.

FIG. 1 is a block diagram illustrating a configuration of a system fortransmitting and receiving data. The system for transmitting andreceiving data may include a display device 100 and a mobile terminal200.

Referring to FIG. 1, the display device 100 may be an image displaydevice such as a television (TV), a monitor, a notebook computer, or atablet Personal Computer (PC) that may be connected to the mobileterminal 200 over a wireless network.

For example, the display device 100 may be a network TV, an InternetProtocol TV (IPTV), a Hybrid Broadcast Broadband TV (HBBTV), or a smartTV that may perform various user-friendly functions as variousapplications are freely added or deleted to/from a general OperatingSystem (OS) Kernel.

The mobile terminal 200 is a device that may be connected to the displaydevice 100 to transmit/receive data over a wireless network. The mobileterminal 200 may have a screen portion smaller than that of the displaydevice 100, and thus may be a device that is capable of carried andfreely moved by a user due to its small size and light weight.

For example, the mobile terminal 200 may be one of various devices,which may output an image and sound, such as portable phones, smartphones, tablet PCs, digital broadcasting terminals, Personal DigitalAssistants (PDAs), Portable Multimedia Players (PMPs), Internet phonessuch as SoIP, navigation devices, and MP3 players.

The display device 100 and the mobile terminal 200 may be connected toeach other to transmit/receive data in one of various wirelesscommunication schemes such as Wireless LAN (WiFi), WiFi direct, WiFidisplay, Blutooth, ZigBee, binary Code Division Multiple Access (CDMA),Wireless broadband (Wibro), World Interoperability for Microwave Access(Wimax), High Speed Downlink Packet Access (HSDPA), Universal Plug andPlay (UPnP)/Digital Living Network Alliance (DLBNA), Ultra wide band(UWB)/wireless Universal Serial Bus (USB).

The display device 100 and the mobile terminal 200 may share content byrespectively transmitting/receiving their stored data in theabove-described wireless communication scheme.

The content may be a real-time broadcast, a movie, music, a photograph,a document file, Content On Demand (COD), a game, news, a video call, anapplication, or the like.

A communication scheme between the display device 100 and the mobileterminal 200 for sharing the content may use various wireless networksenabling data communication, and thus is not limited to a specificcommunication scheme.

In some implementations, as the mobile terminal 200 touches the displaydevice 100, the mobile terminal 200 and the display device 100 maytransmit/receive data to share content.

For example, when a user touches the mobile terminal 200 to a screenportion of the display device 100, a first region of the screen portionof the display device 100 corresponding to a touch location of themobile terminal 200 is designated to the mobile terminal 200, and thus,data may be transmitted and received between the display device 100 andthe mobile terminal 200 through interaction with the designated firstregion.

Hereinafter, specific configurations of each of the display device 100and the mobile terminal 200 will be described in detail, with referenceto FIGS. 2 and 3.

Referring to FIG. 2, the display device 100 may include a signal inputand processing unit 110, a network interface 120, an external deviceinterface 130, an A/V input unit 140, a sensing unit 150, a control unit160, a storage unit 170, a display unit 180, an audio output unit 185,and a user interface 190.

The signal input and processing unit 110 receives and processes a signalfrom external to the device. For example, the signal input andprocessing unit 110 may select a Radio Frequency (RF) broadcast signal,corresponding to a channel selected by the user or all pre-storedchannels, from among a plurality of RF broadcast signals receivedthrough an antenna.

The network interface 120 may provide an interface for connecting thedisplay device 100 to a wired/wireless network, and transmit/receivedata to/from an external device in various wireless communicationschemes that have been described above with reference to FIG. 1.

For example, the network interface 120 may establish wireless networkconnection with the mobile terminal 200 according to a communicationstandard such as WiFi or Bluetooth, and transmit/receive content dataand information for data communication to/from the mobile terminal 200over the connected network.

Moreover, the network interface 120 may include an Ethernet terminal foraccessing the Internet. For example, the network interface 120 mayaccess a webpage through the Ethernet terminal to receive contentprovided from a specific content provider or a network provider, such asa movie, an advertisement, a game, VOD, a broadcast signal, or the like.

The external device interface 130 may establish a connection between anexternal device and the display unit 180. For example, the externaldevice interface 130 may access an external device such as a DigitalVersatile Disk (DVD), Blu-ray, a game machine, a camera, a camcorder, ora computer (e.g, a notebook computer) in a wireless way or a wired way.

In order for the display unit 180 to receive a video signal and an audiosignal from an external device, the A/V input unit 140 may include aComposite Video Banking Sync (CVBS) terminal, a component terminal, anS-video terminal (analog), a Digital Visual Interface (DVI) terminal, aHigh Definition Multimedia Interface (HDMI) terminal, RGB terminals,and/or a D-SUB terminal.

The A/V input unit 140 may include a camera or a microphone and acquiredata corresponding to an image or voice of a user, and the acquired datamay be delivered to the control unit 160.

The sensing unit 150 may include various sensors such as a touch sensor,a magnetometer, an accelerometer, a proximity sensor, a gyroscopesensor, an ambient light sensor, a colorimeter, and/or a tag, forsensing the current state of the display device 100.

For example, the control unit 160 may sense the touch of the mobileterminal 200 for transmission/reception of data or detect alocation/orientation where the mobile terminal 200 touches the displaydevice 100 by using the measured value of a sensor included in thesensing unit 150

The control unit 160 controls an overall operation of the display device100. The control unit 160 may demultiplex a data stream that is inputtedthrough the signal input and processing unit 110, the network interface120, or the external device interface 130, and process the demultiplexedsignals, thereby generating and outputting a signal for output of videoor audio.

The storage unit 170 may store a program that may be utilized in thesignal processing and control of the control unit 160. In addition, thestorage unit 170 may store the signal-processed video, audio, or datasignal.

Moreover, the storage unit 170 may temporarily store a video, audio, ordata signal that is inputted from the external device interface 130 orthe network interface 120, or store information regarding apredetermined broadcast channel with a channel storage function.

The storage unit 170 may store an application or an application listthat is inputted from the external device interface 130 or the networkinterface 120.

The storage unit 170, for example, may include at least one storagemedium of a flash memory, a hard disk, a micro MultiMediaCard (MMC) typeof memory, a card type of memory (e.g., an SD or XD memory, etc.), aRandom Access Memory (RAM), and a Read Only Memory (ROM, for example,Electrically Erasable and Programmable Read Only Memory (EEPROM), etc.).

The display device 100 may provide content data (e.g., a moving imagefile, a still image file, a music file, a document file, an applicationfile, or the like) stored in the storage unit 170 to a user bydisplaying the content data.

The user interface 190 delivers, to the user, a signal inputted by theuser to the control unit 160, or delivers a signal inputted from thecontrol unit 160.

For example, the user interface 190 may receive a control signal or auser input signal such as power-on/off, selection of a channel, orsetting of a screen from a remote controller 195 in one of variouscommunication schemes such as Bluetooth, Radio Frequency Identification(RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), Zigbee,and Digital Living Network Alliance (DLNA) and process the receivedsignal. Alternatively, the user interface 190 may process the controlsignal from the control unit 160 in order for the control signal to betransmitted to the remote controller 195.

The control unit 160 may control the display unit 180 so as to displayan image. For example, the control unit 160 may perform control suchthat the display unit 180 displays a broadcast image inputted throughthe signal input and processing unit 110, an external input imageinputted through the external device interface 130, an image inputtedthrough the network interface 120, or an image stored in the storageunit 170. An image displayed by the display unit 180 may be a stillimage or a moving image, and be a Two-Dimensional (2D) image or aThree-Dimensional (3D) image.

The display unit 180 may include a screen portion positioned such thatit is exposed to a surface of the display device 100 for displaying animage.

The display unit 180 converts an image signal, a data signal, and an OnScreen Display (OSD) signal that have been processed by the control unit160 into RGB signals to generate a driving signal. Alternatively, thedisplay unit 180 converts an image signal and a data signal, which arereceived through the external device interface 130, into RGB signals togenerate a driving signal.

The display unit 180 may display an image utilizing one of variousdisplay types such as Plasma Display Panel (PDP), Liquid Crystal Display(LCD), Organic Light Emitting Diode (OLED), flexible display, and 3Ddisplay. The display unit 180 may be configured with a touch screen andused as an input device as well as an output device.

The audio output unit 185 receives a signal (e.g., a stereo signal, a3.1 channel signal or a 5.1 channel signal) audio-processed by thecontrol unit 160 to output audio.

The configuration of the display device according to one implementationhas been described above with reference to FIG. 2, but the presentinvention is not limited thereto. As another example, the elements ofFIG. 2 may be partially integrated or omitted, or other elements may beadded, according to the main function or specification of a displaydevice.

FIG. 3 is a block diagram illustrating a configuration of a mobileterminal. The mobile terminal 200 may include a wireless communicationunit 210, an A/V input unit 220, a user input unit 230, a sensing unit240, an output unit 250, a memory 260, an interface 270, a control unit280, and a power supply unit 290.

Referring to FIG. 3, the wireless communication unit 210 may be anelement for wireless communication between the mobile terminal 200 and awireless communication system, or for wireless communication between themobile terminal 200 and a network to which the mobile terminal 200 isconnected.

The wireless communication unit 210 may include a broadcast receptionmodule 211, a mobile communication module 212, a wireless Ethernetmodule 213, a Near Field Communication (NFC) module 214, and/or alocation information module 215.

In some implementations, the wireless communication unit 210 maytransmit/receive data to/from an external device in one of variouswireless communication schemes that have been described above withreference to FIG. 1.

For example, the wireless communication unit 210 may establish wirelessnetwork connection with the display device 100 according to acommunication standard such as WiFi or Bluetooth, and transmit/receivecontent data and information for data communication to/from the displaydevice 100 over the connected network.

The broadcast reception module 211 receives a broadcast signal and/orbroadcast-related information from an external broadcast managementserver through a broadcast channel. The broadcast channel may include asatellite channel and/or a terrestrial broadcast channel.

The mobile communication module 211 transmits/receives a wireless signalto/from at least one of: a base station, an external terminal, and/or aserver over a mobile communication network. Herein, the wireless signalmay include an audio call signal, a video call signal, or various typesof data based on the transmission/reception of a text message or amultimedia message.

The wireless Ethernet module 213 denotes a module for accessing wirelessInternet, and may be implemented as an internal module or an externalmodule.

The NFC module 214 is a module for NFC, and may use Bluetooth, RFID,IrDA, UWB, or Zigbee.

Moreover, the location information module 215 is a module for checkingor obtaining the location of the mobile terminal 200. As an example, aGlobal Position System (GPS) module may be used as the locationinformation module 215. The GPS module receives location informationfrom a plurality of satellites.

The A/V input unit 220 is for inputting an audio signal or a videosignal, and may include a camera 221 and/or a microphone 222. The camera221 processes an image frame such as a still image or a moving image,which is obtained by an image sensor in a video call mode or a capturemode. The processed image frame may be displayed by the display unit251.

The image frame processed by the camera 221 may be stored in the memory160 or transmitted to the outside through the wireless communicationunit 210. The camera 221 may include two or more image sensors,depending on the configuration aspect of the terminal 200.

The microphone 222 receives an external sound signal and processes thereceived sound signal into electric audio data, in a call mode, a recordmode, or an audio recognition mode.

The user input unit 230 generates input data in order for the user tocontrol an operation of the terminal 200. The user input unit 230 mayinclude a key pad, a dome switch, a touch screen (constantpressure/power failure), a jog wheel, and/or a jog switch.

The sensing unit 240 may include various sensors such as a touch sensor,a magnetometer, an accelerometer, a proximity sensor, a gyroscopesensor, an ambient light sensor, a colorimeter, and/or a tag, forsensing the current state of the mobile terminal 200.

For example, the sensing unit 240 may sense the touch of the displaydevice 100 or detect a location/orientation where the mobile terminal200 touches the display device 100, by using the sensor.

The interface 270 interfaces with all external devices connected to themobile terminal 200. For example, the interface 270 may include awired/wireless headset port, an external charger port, a wired/wirelessdata port, a memory card port, a port for the connection of a deviceincluding an identification module, an audio Input/Output (I/O) port, avideo I/O port, and/or an earphone port.

Moreover, the output unit 250 is for outputting an audio signal or avideo signal, and may include a display unit 251, a sound output module252, and/or an alarm unit 253.

The display unit 251 displays and outputs information processed by themobile terminal 200. For example, when the mobile terminal 200 is in thecall mode, the display unit 251 displays a User Interface (UI) or aGraphic User Interface (GUI) associated with call. When the mobileterminal 200 is in the video call mode or the capture mode, the displayunit 251 displays a captured and/or received image, a UI, or a GUI.

The sound output module 252 outputs audio data that is received from thewireless communication unit 210 or stored in the memory 260, in a callsignal reception mode, a call mode, a record mode, an audio recognitionmode, or a broadcast reception mode.

The memory 260 may store a program for the processing and control of thecontrol unit 280, and temporarily store input/output content data (e.g.,a moving image file, a still image file, a music file, a document file,an application file, or the like).

The control unit 280 controls the overall operation of the mobileterminal 200. For example, the control unit 280 performs control andprocessing related to voice call, data communication, and video call.Moreover, the control unit 280 may include a multimedia module 281 forreplaying multimedia content. The multimedia module 281 may be includedin the control unit 280 or implemented independently from the controlunit 280.

The power supply unit 290 receives an external power or an internalpower to supply the power necessary for an operation of each element,according to the control of the control unit 280.

FIG. 3 illustrates a mobile terminal including various elements, but theillustrated elements are not all essential elements. That is, the mobileterminal 200 may include elements more than the elements of FIG. 3, orat least one of the illustrated elements may not be applied.

In some implementations, when the mobile terminal 200 touches thedisplay device 100, a first region of a screen portion of the displaydevice 100 corresponding to the touch location is designated to themobile terminal 20, and data may be transmitted and received between thedisplay device 100 and the mobile terminal 200 through interaction withthe designated first region.

For example, a user may touch the mobile terminal 200 to a front screenportion of the display device 100 to designate a first regioncorresponding to the mobile terminal 200. The designated first regionmay be displayed on a screen of the display device 100. Touch need notinclude physical contact. Thus, in some implementations, touch may beimparted through a closeness in proximity between the mobile terminal200 and the display device 100 that enables detection of the touch andthus acts as a surrogate for physical contact.

The user may allow content stored in the display device 100 to betransmitted to the mobile terminal 200 by interacting with thedesignated first region. Similarly, the user may also allow contentstored in the mobile terminal 200 to be transmitted to the displaydevice 100 by interacting with the designated first region.

FIG. 4 is a flowchart illustrating a method of transmitting andreceiving data, and illustrates a method where the display device 100controls the transmission/reception of data to/from the mobile terminal.

Referring to FIG. 4, the display device 100 establishes networkconnection with the mobile terminal 200 in operation S300.

For example, the network interface 120 of the display device 100 maytransmit/receive information for network establishment to/from themobile terminal 200 according to a corresponding communication standard,for data communication with the mobile terminal 200 using a wirelesscommunication scheme such as WiFi, Bluetooth, UPnP/DLBNA, or UWB. Thenetwork interface 120 may establish a wireless network connection on thebasis of the transmitted/received network establishment information.

Network establishment information, transmitted/received between thedisplay device 100 and the mobile terminal 200 for the networkconnection, may include identification (ID) information of each device,ID information regarding a corresponding network, and securityinformation (e.g., a password).

In some embodiments, a program (for example, a content-sharingapplication) for executing a method of transmitting and receiving datamay be preinstalled in each of the display device 100 and the mobileterminal 200.

In order for the display device 100 and the mobile terminal 200 to sharecontent, before operation S300, an operation of registering the mobileterminal 200 in the display device 100 may be performed, and also, whenthe mobile terminal 200 requests network connection, an operation ofauthenticating the mobile terminal 200 may be further performed on thebasis of the registered information.

In a state where a wireless communication function such as WiFi orBluetooth is being activated in the display device 100 and the mobileterminal 200, if the content-sharing application installed in the mobileterminal 200 is executed, the display device 100 and the mobile terminal200 may search for each other and establish network connection.

For this end, the mobile terminal 200 may store a plurality ofencryption keys and a Service Set IDentifier (SSID) for WiFi networkconnected to the display device 100.

When the mobile terminal 200 touches the screen portion of the displaydevice 100 in operation S310, the display device 100 detects a touchlocation of the mobile terminal 200 in operation S320. In someimplementations, the network connection with the mobile terminal 200 isestablished before detecting the touch location of the mobile terminal200. However, in other implementations, the network connection may beestablished or after or as a consequence (i.e., triggered from)detecting the touch location of the mobile terminal 200.

The screen portion of the display device 100 may denote a portion of thefront of the display device 100 that displays an image when viewed by auser.

For example, the display unit 180 of the display device 100 may includea display panel (not shown) displaying an image, and a backlight unit(not shown) that is disposed at the rear of the display panel andsupplies light to the display panel, in which case the screen portiontouching the mobile terminal 200 may denote the front of the displaypanel.

When a functional layer such as an optical sheet or a touch panel isformed at the front of the display panel, the screen portion touchingthe mobile terminal 200 may denote a functional layer formed at thefront of the display panel.

Moreover, the mobile terminal 200 touching the screen portion of thedisplay device 100 denotes that the mobile terminal 200 physicallytouches the screen portion, and may also include a case (which is notthe physical touch) where the mobile terminal 200 is very closelyadjacent to the screen portion within a touch-detectable distance fromthe display device 100 or the mobile terminal 200.

In some implementations, the display unit 180 of the display device 100may be realized as a touch screen, which may be disposed at the front ofthe display panel and sense the touch of an object such as a user'sfinger.

The touch panel determines the touch location of the object and convertsthe touch location into an electric signal to output the electricsignal. The display device 100 may perform a function corresponding tothe touch location.

The touch panel may include a plurality of touch sensors for sensing thetouch and touch location of the object, and the touch sensors may sensea touch in a resistive touch scheme, a light sensing touch scheme, or acapacitive touch scheme.

For example, a capacitive touch panel may sense the change of acapacitance that is formed by a conductive sensing pattern and anotherambient sensing pattern or a ground electrode when touched by a user'sfinger or an object, and thus converts a touch location into an electricsignal.

In this case, the display device 100 may sense the touch and touchlocation of the mobile terminal 200 with the touch panel included in thedisplay unit 180.

When the touch of the mobile terminal 200 is ended in operation S330, afirst region corresponding to the sensed touch location is designated tothe mobile terminal 200 in operation S340.

For example, when the user has touched a rear of the mobile terminal 200to the screen portion of the display device 100 for a certain time(e.g., one second) and then moves the mobile terminal 200 away from thedisplay device 100, the first region of the screen potion of the displaydevice 100 corresponding to the touch location of the mobile terminal200 may be designated as a region for transmitting and receiving datafrom/to the mobile terminal 200.

Referring to a portion (a) and portion (b) of FIG. 5, a display unit 251displaying an image (e.g., a photograph C1) may be disposed at a front200F of the mobile terminal 200, and a rear 200R of the mobile terminal200 may be covered by a case.

Subsequently, when an object displayed on the screen of the displaydevice 100 is moved to the first region in operation S350, the networkinterface 120 transmits data, corresponding to the object, to the mobileterminal 200 in operation S360.

Referring to FIG. 6, a plurality of objects 410, 420 and 430 to 433 thatrespectively indicate an accessible specific file, a folder, content,etc. may be displayed on a screen 400 of the display device 100.

Each of the objects may be displayed as an identifiable icon type ofimage such as a thumbnail image indicating pertinent content or files,on the screen 400.

For example, the user may select a file object 410 to open (a filecorresponding to a pertinent object) and move a display location of thefile object 410 to an arbitrary location of the screen 400.

More specifically, when the display unit 180 is configured with a touchscreen and serves as a user input means, the user may select a specificobject or drag and move the selected object in a desired direction, witha tool such as a finger.

Alternatively, the user may move a display location of a specific objectwith a key button included in the remote controller 195, or move thedisplay location of the specific object with the remote controller 195having a motion recognition function.

Moreover, the folder object 420 may include a plurality of contents suchas photographs, moving images, and music. The user may select the folderobject 420 to check a plurality of contents included in a correspondingfolder or files respectively corresponding to the contents, and thenselect and display desired content.

Contents stored in the display device 100, for example, thumbnail imagetypes of content objects 430 to 432, respectively corresponding to aphotograph, a moving image, an audio file, and a memo, may be displayedon the screen 400 of the display device 100.

In some implementations, when the user moves a specific object of theobjects illustrated in FIG. 6 to the first region that has beendesignated to the mobile terminal 200 in operation S340, data (e.g.,content stored in the display device 100) corresponding to the specificobject may be transmitted to the mobile terminal 200.

Hereinafter, a method of transmitting and receiving data will bedescribed in more detail with reference to FIGS. 7 to 21.

FIG. 7 illustrates a first method for designating a specific region of ascreen of a display device to a mobile terminal according to a touchlocation of the mobile terminal.

Referring to a portion (a) of FIG. 7, the user may move the mobileterminal 200 such that the rear 200R of the mobile terminal 200 isoriented toward the display device 100, and thus touch the rear 200R ofthe mobile terminal 200 to an empty region of the screen portion of thedisplay device 100 in which an object is not displayed.

In this case, the display device 100 may detect a touch location of themobile terminal 200 and simultaneously determine whether an orientationis the front or rear of the mobile terminal 200.

For example, the sensing unit 150 of the display device 100 may detectthe orientation of the mobile terminal 200 by using various sensors suchas a magnetic field sensor, an accelerometer sensor, a proximity sensor,a Gyro sensor, an ambient light sensor, and/or a color meter.

The user may touch any one of the front, rear and side of the mobileterminal 200 to the screen portion of the display device 100, and whentouched, the sensing unit 150 may detect the orientation in which themobile terminal 200 is touched.

The control unit 160 of the display device 100 may determine theorientation of the mobile terminal 200 by using a sensing valueoutputted from the sensing unit 150. Also, the control unit 160 may usethe sensing value of the sensing unit 150 and information received fromthe mobile terminal 200, for determining the orientation. Theinformation received from the mobile terminal 200 may be a sensing valuemeasured by the sensing unit 240 of the mobile terminal 200.

On the other hand, the orientation of the mobile terminal 200 may bedetected by the sensing unit 240 or control unit 280 of the mobileterminal 200, in which case information regarding the orientation of themobile terminal 200 may be received by the display device 100 over thenetwork that has been connected in operation S300.

When the user has touched the rear 200R of the mobile terminal 200 to anempty region of the screen portion of the display device 100 for apredetermined time (e.g., for one second or more) and then moves therear 200R away from the screen portion, as illustrated in a portion (b)of FIG. 7, a first region 500 corresponding to the touch location may bedesignated to the mobile terminal 200 and displayed on a screen 400.

In some implementations, the displayed first region 500 may includeidentification information of the mobile terminal 200. For example, anindication of a name of the mobile terminal 200 (e.g., “Mobile 1”) maybe displayed in the first region 500. Alternatively or additionally, thefirst region 500 may include a graphical representation corresponding tothe mobile terminal 200. The graphical representation may be any visualrepresentation displayed on displayed device 100 and need not reflectany visual characteristics of the mobile device.

In this case, a location of the designated first region and theidentification information of the mobile terminal 200 may be stored inthe storage unit 170 of the display device 100 in association with eachother.

FIG. 8 illustrates a first method of transmitting and receiving data byusing a region designated to a mobile terminal.

Referring to FIG. 8, a user may move an object 430, displayed on ascreen 400, to a first region 500 designated to the mobile terminal 200,and thus allow content, corresponding to the object 430, to betransmitted to the mobile terminal 200.

For example, as illustrated in a portion (a) of FIG. 8, the user maydrag, with a tool such as a finger, the photograph object 430 displayedon the screen 400 of the display device 100 and move the photographobject 430 toward the first region 500 designated to the mobile terminal200. For this end, the display unit 180 of the display device 100 may beimplemented as a touch screen.

As illustrated in a portion (b) of FIG. 8, when the user touches anddrags the photograph object 430, a virtual image 430′ of the photographobject 430 may move toward the first region 500.

Subsequently, when the user drops the virtual image 430′ of thephotograph object 430 (by, for example, removing her finger from thescreen) at a location where at least one portion of virtual image 430′overlaps with the first region 500, photograph content corresponding tothe photograph object 430 may be transmitted to the mobile terminal 200.

It can be known to the user that a display attribute such as color ofthe first region 500 may be changed, and thus data stored in the displaydevice 100 may be transmitted to the mobile terminal 200, at a time whenthe photograph object 430 moves to the first region 500,

Referring to a portion (c) of FIG. 8, when the user moves and drops thephotograph object 430 to the first region 500, a photographcorresponding to the photograph object 430 may be transmitted to themobile terminal 200 and displayed on a screen 251 of the mobile terminal200.

The method of transmitting and receiving data has been described abovewith reference to FIG. 8 as an example of when the display device 100and the mobile terminal 200 share the photograph, but the method is notlimited thereto. For example, the display device 100 and the mobileterminal 200 may share various contents such as a moving image, music,an application, contact information, a video streaming service, a videocall, a game, and news, in addition to the photograph.

FIG. 9 illustrates a first method for displaying a region, designated toa mobile terminal, on a screen of a display device.

Referring to FIG. 9, a first region 500 may be generated in a circularshape having a predetermined radius ‘r’ from a touch location P1 of themobile terminal 200 in a screen portion of the display device 100.

The touch location P1 of the mobile terminal 200 may correspond to alocation of a sensor sensing the touch of the mobile terminal 200 amonga plurality of sensors included in the display device 100, for detectinga touch location.

The touch location P1 of the mobile terminal 200 may alternatively bedefined as a central point of a region, touched by the mobile terminal200, in the screen portion of the display device 100.

As described above, when the first region 500 is generated according tothe touch location of the mobile terminal 200, information regarding thegenerated first region 500 and the identification information of themobile terminal 200 may be stored in the storage unit 170.

For example, as shown in Table 1 below, the touch location of the mobileterminal 200 and information regarding an identifier (ID) andorientation of a terminal may be stored in the storage unit 170 inassociation with each other.

TABLE 1 Terminal ID Orientation Touch location 1 Rear P1

Referring to FIG. 1, the information stored in the storage unit 170 maydenote that the first region 500 designated to the mobile terminal 200having a terminal ID of 1 has been generated with the touch location P1of the mobile terminal 200 as its center.

Therefore, when a specific object displayed on the screen 400 moves, thecontrol unit 160 of the display device 100 may determine whether theobject overlaps with the circular first region 500 having the radius ‘r’from the touch location P1.

When the determined result shows that the object has moved to a locationoverlapping with the first region 500, the control unit 160 may controlthe network interface 120 such that data corresponding to the object istransmitted to the mobile terminal 200.

In the above description, it has been described as an example that thefirst region 500 designated to the mobile terminal 200 is generated acircular shape, but the method is not limited thereto. The first region500 may be generated in various shapes other than a circular shape anddisplayed on the screen 400.

FIGS. 10 to 12 illustrate a method of managing a region designated to amobile terminal according to a network connection state.

Referring to FIG. 10, when network connection between the display device100 and the mobile terminal is ended, the first region 500 designated tothe mobile terminal 200 may be removed.

For example, when the mobile terminal 200 moves to outside a regionwhere the mobile terminal 200 can wirelessly communicate with thedisplay device 100 or network between display device 100 and the mobileterminal 200 is disconnected due to a network error, a popup window 401indicating “network connection has been ended” is displayed on a screen400, and simultaneously, the first region 500 may be removed from thescreen 400 of the display device 100.

The first region 500 may be removed according to a user input, inaddition to the end of network connection. For example, when the userdraws an X mark in the first region 500 displayed on the screen 400 witha tool such as a finger, the first region 500 may be removed from thescreen 400.

In this way, when the first region 500 has been removed, the informationregarding the first region 500 that has been described above withreference to Table 1 may be deleted from the storage unit 170.

Referring to FIG. 11, as described above, when network connectionbetween the display device 100 and the mobile terminal is ended, thefirst region 500 designated to the mobile terminal 200 may be displayedin an inactive state.

That is, when network connection between the display device 100 and themobile terminal 200 is maintained normally, as illustrated in theportion (b) of FIG. 7, the first region 500 is displayed in an activestate, but when network connection between the display device 100 andthe mobile terminal 200 is ended, as illustrated in FIG. 11, the stateof the first region 500 may be changed to an inactive state.

In the inactive state, the first region 500 cannot have the functionthat has been described above with reference to FIGS. 4 to 9.

Moreover, the state of the first region 500 may be changed to theinactive state as illustrated in FIG. 11, according to a user input.

However, when the first region 500 is deactivated, the informationregarding the first region 500 that has been described above withreference to Table 1 may be deleted from the storage unit 170 andcontinuously stored for a case where the first region 500 is changed toan active state.

Referring to FIG. 12, when network connection between the display device100 and the mobile terminal is reset, the first region 500 designated tothe mobile terminal 200 may be again activated.

That is, when the mobile terminal 200 with which network connection wasended enters into a region where the mobile terminal 200 can wirelesslycommunicate with the display device 100 or a network is connectedbetween the display device 100 and the mobile terminal 200 due to therepair of a network error, a popup window 402 indicating “networkconnection has been set” may be displayed on the screen 400, and thefirst region 500 may be activated according to a user input.

For example, as illustrated in a portion (a) of FIG. 12, the user maycheck the popup window 402 and then select a YES button 421 displayed ona screen 400 to change the state of the first region 500 to an activestate.

In this case, as illustrated in a portion (b) of FIG. 12, the firstregion 500 designated to the mobile terminal 200 may be displayed in anactive state on the screen 400 and perform the function that has beendescribed above with reference to FIGS. 4 to 9.

In some implementations, a location or size of the first region 500displayed on the screen 400 may be changed according to a user input.

Referring to FIG. 13, a user may drag the first region 500, displayed ona screen 400, in a desired direction to move a display location of thefirst region 500.

For example, as illustrated in a portion (a) of FIG. 13, the user maydrag the first region 500 displayed on the screen 400 of the displaydevice 100 to move the first region 500 in a desired direction, with atool such as a finger.

As illustrated in a portion (b) of FIG. 13, when the user touches anddrags the first region 500, a virtual image 500′ of the first region 500may be generated and moved in a drag direction by the user.

Subsequently, when the user drops the virtual image 500′ of the firstregion 500 to a desired location, as illustrated in a portion (c) ofFIG. 13, the location of the first region 500 may move.

For example, when a central location of the first region 500 is moved toa location P2, the information regarding the first region 500 stored inthe storage unit 170 may be changed as in Table 2.

TABLE 2 Terminal ID Orientation Touch location 1 Rear P2

Referring to FIG. 14, a user may enlarge or reduce the first region 500,displayed on a screen 400, to a desired size.

For example, when the user touches two side points of the first region500, displayed on the screen 400 of the display device 100, with toolssuch as two fingers and then moves the two fingers in mutually oppositedirections so as to increase an interval between the two points, thefirst region 500 may be enlarged in proportion to a distance by whichthe two fingers are moved.

In this case, information regarding the enlarged size of the firstregion 500 may be stored in the storage unit 170.

In some implementations, a plurality of regions respectively designatedto a plurality of mobile terminals may be generated and displayed on ascreen of the display device 100.

Hereinafter, a method that respectively designates a plurality ofregions on a screen of a display device to a plurality of mobileterminals to transmit and receive data will be described with referenceto FIGS. 15 to 18.

Referring to FIG. 15, the first region 500 and a second region 501 on ascreen 400 of the display device 100 may be designated to the mobileterminal 200 and another mobile terminal 201 and displayed,respectively.

Hereinafter, the mobile terminal 200 will be referred to as a firstmobile terminal 200, and the mobile terminal 201 will be referred to asa second mobile terminal 201.

As illustrated in a portion (a) of FIG. 15, in a state where the firstregion 500 designated to the first mobile terminal 200 is beingdisplayed on the screen 400, a user may touch a rear of the secondmobile terminal 201 to the screen portion of display device 100.

When the user has touched the rear of the second mobile terminal 201 tothe screen portion of the display device 100 for a predetermined time(e.g., for one second or more) and then moves the rear away from thescreen portion, as illustrated in a portion (b) of FIG. 15, the secondregion 501 designated to the second mobile terminal 201 and the firstregion 500 designated to the first mobile terminal 200 may be displayedon the screen 400 of the display device 100.

As described above with reference to FIG. 8, when the user moves one ofa plurality of objects, displayed on the screen 400, to the displayedsecond region 501, content corresponding to the moved object may betransmitted to the second mobile terminal 201.

Moreover, as described above, when the second region 501 is generatedaccording to a touch location of the second mobile terminal 201,information regarding the second region 501 may be additionally storedin the storage unit 170 of the display device 100 as in Table 3 below.

TABLE 3 Terminal ID Orientation Touch location 1 Rear P1 2 Rear P3

Referring to Table 3, the information stored in the storage unit 170 mayindicate that the second region 501 designated to the second mobileterminal 201 having a terminal ID of 2 has been generated with alocation P3 as its center.

Referring to FIG. 16, a plurality of regions respectively designated toa plurality of mobile terminals may be combined as one region, and thus,the mobile terminals may share the same content.

For example, as illustrated in a portion (a) and portion (b) of FIG. 16,when the user touches the second region 501, designated to the secondmobile terminal 201, with a tool such as a finger and then drags thesecond region 501 to the first region 500, the first and second regions500 and 501 may be combined as one region 510 and displayed on thescreen 400.

As described above, when the first and second regions 500 and 501 may becombined as the one region 510, as shown in Table 4 below, theinformation stored in the storage unit 170 of the display device 100 maybe changed.

TABLE 4 Terminal ID Orientation Touch location 1, 2 Rear P1

The user may move an object, displayed on the screen 400, to thecombined region 510 and thus allow data corresponding to the movedobject to be transmitted to the first and second mobile terminals 200and 201.

As illustrated in a portion (b) and portion (c) of FIG. 16, when theuser drags the photograph object 430 displayed on the screen 400 to moveand drop the photograph object 430 to the combined region 510, aphotograph corresponding to the photograph object 430 may be transmittedto the first and second mobile terminals 200 and 201 and displayed onthe respective screens of the first and second mobile terminals 200 and201.

Referring to FIG. 17, in a state where the first region 500 designatedto the first mobile terminal 200 is being displayed on the screen 400,the user may touch the rear of the second mobile terminal 201 to alocation overlapping with the first region 500.

In this case, the first region 500 may be designated to the first andsecond mobile terminals 200 and 201 and changed to the combined region510 that has been described above with reference to FIG. 16.

The combined region 510 that has been described above with reference toFIGS. 16 and 17 may be again segmented into a plurality of separateregions.

Referring to a portion (a) and portion (b) of FIG. 18, when the usertouches and drags the combined region 510 with a tool such as a finger,a virtual image 501′ corresponding to the second region 501 designatedto the second mobile terminal 201 may be moved outward from the combinedregion 510 and displayed on the screen 400.

Subsequently, when the user drops the virtual image 501′ correspondingto the second region 501 to a desired location, the second region 501designated to the second mobile terminal 201 may be displayed on thescreen 400.

When the second region 501 is separated from the combined region 510, asshown in Table 5 below, the information stored in the storage unit 170of the display device 100 may be changed.

TABLE 5 Terminal ID Orientation Touch location 1 Rear P1 2 Rear P4

Referring to Table 5, Table 5 shows that the second region 501designated to the second mobile terminal 201 having a terminal ID of 2has been separated to a location with a location P4 as its center anddisplayed.

A case, where the two mobile terminals 200 and 201 touch the screenportion of the display device 100 and thus the regions 500 and 501 fortransmitting and receiving data are generated, has been described aboveas an example, but the method is not limited thereto.

For example, three or more regions respectively designated to three ormore mobile terminals may be displayed on the screen 400 of the displaydevice 100, in which case only one region may be designated to onemobile terminal (e.g., 200).

In some implementations, when a front of the mobile terminal 200 touchesthe screen portion of the display device 100, data stored in the mobileterminal 200 may be received by the display device 100 by using thefirst region 500 that has been described above with reference to FIGS. 4to 18.

FIG. 19 illustrates a second method for designating a specific region ofa screen of a display device to a mobile terminal according to a touchlocation of the mobile terminal.

Referring to a portion (a) of FIG. 19, the user may move the mobileterminal 200 such that the front 200F of the mobile terminal 200 isoriented to the display device 100, and thus touch the front 200F of themobile terminal 200 to an empty region of the screen portion of thedisplay device 100 in which an object is not displayed.

For example, when the user has touched the front 200F of the mobileterminal 200 to an empty region of the screen portion of the displaydevice 100 for a predetermined time (e.g., for one second or more) andthen moves the front 200F away from the screen portion, as illustratedin a portion (b) of FIG. 19, a first region 520 corresponding to thetouch location may be designated to the mobile terminal 200 anddisplayed on a screen 400.

When the first region 520 is generated, as shown Table 6 below,information regarding the first region 520 designated to the mobileterminal 200 may be stored in the storage unit 170.

TABLE 6 Terminal ID Orientation Touch location 1 Front P5

Referring to Table 6, the information stored in the storage unit 170 mayindicate that the first region 520 designated to the mobile terminal 200having a terminal ID of 1 has been generated with a touch location P5 ofthe mobile terminal 200 as its center, and an orientation of the mobileterminal 200 is the front.

Referring to FIG. 20, the user may select the first region 520 on thescreen 400, and thus allow content, stored in the mobile terminal 200,to be transmitted to the display device 100.

For example, as illustrated in a portion (a) and portion (b) of FIG. 20,when the user touches and selects the first region 520 with a tool suchas a finger, a content list 521 stored in the mobile terminal 200 may bedisplayed on the screen 400 of the display device 100.

For this end, in generating the first region 520, the mobile terminal200 may transmit information regarding the contents stored therein tothe display device 100.

Subsequently, as illustrated in the portion (b) of FIG. 20, when theuser makes a motion that selects at least one content (for example,Content 1) for transmitting from a content list displayed on a screen400 and moves the selected list to outside the content list 521, thecontent ‘Content 1’ may be transmitted from the mobile terminal 200 tothe display device 100.

Referring to a portion (c) of FIG. 20, the content ‘Content 1’ isreceived from the mobile terminal 200, and simultaneously, an object 434corresponding to the content ‘Content 1’ may be displayed on a screen400 of the display device 100.

FIG. 21 illustrates a second method for displaying a region, designatedto a mobile terminal, on a screen of a display device.

Referring to FIG. 21, the first region 500 generated by touching thefront of the mobile terminal 200 and the first region 520 generated bytouching the rear of the mobile terminal 200 may be displayed togetheron a screen 400 of the display device 100.

For example, the user may transmit the content, stored in the displaydevice 100, to the mobile terminal 200 by using the first region 500that has been generated by touching the front, and the display device100 may receive the content stored in the display device 100 by usingthe first region 520 that has been generated by touching the rear.

To determine two first regions 500 and 520 designated to the mobileterminal 200, as illustrated in FIG. 21, a name of the first region 500may be displayed as “To. Mobile 1”, and a name of the first region 520may be displayed as “From. Mobile 1”.

Alternatively, the first regions 500 and 520 may be displayed to bedifferentiated with different colors or shapes.

Information regarding the two first regions 500 and 520 designated tothe mobile terminal 200 may be stored in the storage unit 170 as inTable 7 below.

TABLE 7 Terminal ID Orientation Touch location 1 Rear P1 2 Front P5

Hereinafter, implementations of each configuration of a display deviceand mobile terminal that perform a method of transmitting and receivingdata will be described with reference to FIGS. 22 to 30.

In some implementations, a display device 100 may include a touchscreen, and detect a touch and touch location of the mobile terminal 200by using the touch screen.

In some implementations, before performing the method of transmittingand receiving data that has been described above with reference to FIGS.4 to 21, a registration process and authentication process for themobile terminal 200 may be performed.

For example, the registration process corresponds to a stage that storesidentification information of the mobile terminal 200 in the displaydevice 100 and thus allows the mobile terminal 200 to share content withthe display device 100. The authentication process corresponds to astage that checks whether a corresponding element has been registered inthe mobile terminal 200 that approaches the display device 100 forsharing content.

Referring to FIG. 22, the display device 100 includes a FrequencyModulation (FM) transmitter 300, which may transmit an FM signalincluding registration information over an FM frequency band.

For example, the FM transmitter 300 may scan a plurality of FM frequencybands, and transmit a Radio Data System (RDS) signal, including apassword and identification information (e.g., a network ID) for awireless network, over an FM frequency band in a carousel scheme.

The RDS signal may have identification information for identifying dataincluded in the RDS payload. The RDS signal transmitted from the FMtransmitter 300 may include a unique identifier, as a bit sequence (ID),for identifying the registration information.

Moreover, the network identification information (e.g., the network ID)and password included in the RDS signal is encrypted, and the mobileterminal 200 may store a plurality of keys for decrypting the encryptednetwork identification information (e.g., the network ID) and password.The encryption keys may be changed for security with the elapse of time,and the changed encryption key may be pre-provided to the display device100 and the mobile terminal 200.

When the mobile terminal 200 executes an application for sharing contentwith the display device 100, identification information (ID) for themobile terminal 200 may be given, and the mobile terminal 200 may scanan FM spectrum.

In an operation of scanning the FM spectrum, the mobile terminal 200 maycheck a unique ID bit sequence included in the RDS payload to detect theRDS signal transmitted from the display device 100.

Subsequently, the mobile terminal 200 extracts the encrypted network IDand password from the detected RDS signal, and decrypts the encryptednetwork ID and password with a prior key.

The mobile terminal 200 may establish a wireless network connection withthe display device 100 by using the decrypted network ID and password.

The mobile terminal 200 may transmit the identification information (ID)of the mobile terminal 200 and user information (e.g., a user name, aphotograph, etc.) to the display device 100 over the connected network.

The display device 100 may store the identification information (ID) ofthe mobile terminal 200 received from the mobile terminal 200 toregister a corresponding terminal.

In an operation of scanning the FM spectrum, when the RDS signaltransmitted from the display device 100 is not detected, the mobileterminal 200 may display the message “unable to connect network forsharing content with the display device 100”.

In some implementations, a wireless network for connecting the displaydevice 100 and the mobile terminal 200 may be based on a WiFi wirelesscommunication standard, and thus, registration information transmittedusing an RDS signal may include an ID and password of a WiFi network.

Referring to FIG. 23, the above-described registration information maybe transferred from the display device 100 to the mobile terminal 200through a pattern 310 using a steganography mechanism.

First, when the display device 100 executes an application for sharingcontent and the mobile terminal 200 executes an application for sharingcontent, the display device 100 may display the pattern 310 includingencrypted information for network establishment.

In this case, the user may focus a camera (not shown), included in themobile terminal 200, on the pattern 310 to allow the pattern 310 to bedisplayed on a screen 251 of the mobile terminal 200.

The mobile terminal 200 may collect information (e.g., a WiFi network IDand a password) for network establishment from an image of the acquiredpattern 310, and establish wireless network connection with the displaydevice 100 on the basis of the collected information.

The mobile terminal 200 may transmit its identification information(e.g., a model number or International Mobile Equipment Identity (IMEI)serial) to the display device 100 over the connected wireless network,and the transmitted identification information of the mobile terminal200 may be stored and registered in the display device 100.

Hereinafter, various methods of detecting the orientation of the mobileterminal 200 will be described in detail with reference to FIGS. 24 to30.

Referring to FIG. 24, the mobile terminal 200 may include amagnetometer. The mobile terminal 200 may detect the orientation withthe magnetometer and transmit information regarding the orientation tothe display device 100.

For example, as illustrated in FIG. 24, the mobile terminal 200 maydetermine the orientation as the front when an output value of themagnetometer indicates 180 degrees or more, and transmit informationindicating “the orientation is the front” to the display device 100.

In this case, in touching the mobile terminal 200, the display device100 may request the transmission of content to the mobile terminal 200on the basis of the received information regarding the orientation, andreceive content data selected by the mobile terminal 200.

The mobile terminal 200 may determine the orientation as the rear whenthe output value of the magnetometer indicates less than 180 degrees,and transmit information indicating “the orientation is the rear” to thedisplay device 100.

In this case, in touching the mobile terminal 200, the display device100 may transmit content data to the mobile terminal 200 on the basis ofthe received information regarding the orientation.

Moreover, as shown in Table 8 below, the detected orientation of themobile terminal 200 and the identification information (ID) of themobile terminal 200 may be stored and managed by the display device 100in linkage with each other.

TABLE 8 ID Orientation 10 Front 21 Rear 51 Front

Referring to FIG. 25, the mobile terminal 200 may include anaccelerometer. The mobile terminal 200 may detect the orientation byusing an output value of the accelerometer.

For example, as illustrated in FIG. 25, a value that the accelerometermeasures along an moving axis of the mobile terminal 200 when theorientation is the front is opposite to a value that the accelerometermeasures along the moving axis of the mobile terminal 200 when theorientation is the rear, and thus, the mobile terminal 200 may detectthe orientation by using the output value of the accelerometer.

Referring to FIG. 26, the mobile terminal 200 may detect an orientationtoward the display device 100 by using proximity sensors 320 and 321respectively disposed in the front 200F and the rear 200R.

For example, when the front 200F of the mobile terminal 200 touches thescreen portion 181 of the display device 100, the proximity sensor 320disposed in the front 200F of the mobile terminal 200 may sense theapproach of an object, and when the rear 200R of the mobile terminal 200touches the screen portion of the display device 100, the proximitysensor 321 disposed in the rear 200R of the mobile terminal 200 maysense the approach of an object.

Referring to FIG. 27, the mobile terminal 200 may detect an orientationtoward the display device 100 by using a gyroscope sensor.

Each of the display device 100 and the mobile terminal 200 includes agyroscope sensor. The display device 100 may receive a specific value ofthe gyroscope sensor, included in the mobile terminal 200, from themobile terminal 200 and compare the received value with a measurementvalue of the internal gyroscope sensor to detect the orientation of themobile terminal 200.

That is, the display device 100 may compare an xyz axis (g1), indicatingthe direction of the display device 100 detected by the internalgyroscope sensor, and an xyz axis (g2), indicating the direction of themobile terminal 200 detected by the gyroscope sensor of the mobileterminal 200, to detect the orientation.

For example, when a specific value of the gyroscope sensor included inthe display device 100 is the same as a specific value of the gyroscopesensor included in the mobile terminal 200, the display device 100 maydetermine as touched by the rear of the mobile terminal 200.

When a difference between the xyz axis (g1) indicating the direction ofthe display device 100 and the xyz axis (g2) indicating the direction ofthe mobile terminal 200 is about 180 degrees on any one axis, thedisplay device 100 may determine as touched by the front of the mobileterminal 200.

Moreover, when the xyz axis (g1) indicating the direction of the displaydevice 100 differs from the xyz axis (g2) indicating the direction ofthe mobile terminal 200, the display device 100 may determine as touchedby the side of the mobile terminal 200.

Referring to FIG. 28, the mobile terminal 200 may sense an orientationtoward the display device 100 by using a light sensor 630, which may beimplemented with an ambient light sensor or a colorimeter.

For example, the mobile terminal 200 may transmit color information,which has been measured by the light sensor 630 disposed in the front200F, and the identification information (ID) of the mobile terminal 200to the display device 100. The display device 100 may compare colorinformation of an image, displayed at a time when the mobile terminal200 touches the display device 100, and the color information receivedfrom the mobile terminal 200 to determine the orientation.

Referring to FIG. 29, when the front 200F of the mobile terminal 200touches the screen of the display device 100, the light sensor 630disposed in the front 200F of the mobile terminal 200 may sense an imagedisplayed by the display device 100, and thus, color informationmeasured by the light sensor 630 may match with color information of theimage displayed by the display device 100.

Therefore, when brightness (e.g., an average brightness of a regioncorresponding to a location touched by the mobile terminal 200, in adisplayed image) of the image displayed by the display device 100matches with light brightness that has been measured by the ambientlight sensor disposed in the front of the mobile terminal 200, based onthe touched time, the display device 100 may determine that the front ofthe mobile terminal 200 has touched the display device 100.

Moreover, when a color temperature (e.g., a color temperature of aregion corresponding to a location touched by the mobile terminal 200,in the displayed image) of the image displayed by the display device 100matches with a color temperature that has been measured by thecolorimeter disposed in the front of the mobile terminal 200 (or, when adifference between the color temperatures is within a predeterminederror range), based on the touched time, the display device 100 maydetermine that the front of the mobile terminal 200 has touched thedisplay device 100.

For this, the display device 100 may acquire color information of animage, displayed at the touched time, from display image data and storethe acquired color information in the storage unit 170.

Referring to FIG. 30, when the rear 200R of the mobile terminal 200touches the screen of the display device 100, color information measuredby the light sensor 630 may differ from color information of an imagedisplayed by the display device 100.

Therefore, when brightness (e.g., an average brightness of a regioncorresponding to a location touched by the mobile terminal 200, in adisplayed image) of the image displayed by the display device 100differs from light brightness that has been measured by the ambientlight sensor disposed in the front of the mobile terminal 200 (or, whena difference between the brightness and the light brightness liesoutside a predetermined error range), based on the touched time, thedisplay device 100 may determine that the rear of the mobile terminal200 has touched the display device 100.

Moreover, when a color temperature (e.g., a color temperature of aregion corresponding to a location touched by the mobile terminal 200 inthe displayed image) of the image displayed by the display device 100differs from a color temperature that has been measured by thecolorimeter disposed in the front of the mobile terminal 200 (or, when adifference between the color temperatures lies outside a predeterminederror range), based on the touched time, the display device 100 maydetermine as touched by the rear of the mobile terminal 200.

In some implementations, one or more conductors are attached to each ofthe front and rear of the mobile terminal 200, and the touch of themobile terminal 200 may be sensed with the conductors.

Based on these implementations, the mobile terminal 200 may sense acurrent, flowing through the conductors in the front, to detect that thefront of the mobile terminal 200 has touched the display device 100.Alternatively, the mobile terminal 200 may sense a current, flowingthrough the conductors in the rear, to detect that the rear of themobile terminal 200 has touched the display device 100.

To detect the orientation, the mobile terminal 200 may include agyroscope sensor and an accelerometer.

For example, the mobile terminal 200 may detect the orientation with athree-axis gyroscope sensor or a two-axis gyroscope sensor, and thentransmit information regarding the detected orientation to the displaydevice 100.

Hereinafter, other implementations of each configuration of a displaydevice and a mobile terminal that perform the above-described method oftransmitting and receiving data will be described with reference toFIGS. 31 to 34.

In some implementations, a display device 100 may include a plurality ofNear Field Communication (NFC) tags, which may be used to detect whetherthe mobile terminal 200 touches the display device 100 and the touchlocation of the mobile terminal 200.

NFC is a branch of RFID, and is a near field wireless communicationscheme that has been defined as a standard in ISO 18902 for transmittinglow-power data at a frequency of 13.56 MHz in a near field. Also, NFCmay perform near field wireless communication at various frequency bandssuch as 125 KHz, 135 KHz and 900 MHz, in addition to a frequency of13.56 MHz.

Referring to FIG. 31, the display device 100 may include a plurality ofNFC tags 700 disposed in the rear of the display unit 180. The NFC tag700 may be a passive NFC tag.

The NFC tag 700 may store manufacturer information regarding the displaydevice 100, a model name, a model number, identification information(e.g., a serial number) of a corresponding device, and a tag index foridentifying a location at which a corresponding NFC tag is disposed.Herein, the tag index may represent the location of the NFC tag 700 as acoordinate (x, y).

That is, the serial number among the information stored in the NFC tag700 varies per display device and is used to identify a correspondingdisplay device 100. The tag index varies per NFC tag and is used toidentify the location of a corresponding NFC tag 700.

Referring to FIG. 32, the mobile terminal 200 may include an NFC reader710. Herein, the NFC reader 710 may transmit one or more signals to theNFC tag 700 included in the display device 100. The NFC reader 710activates the NFC tag by using a signal of a certain frequency band(e.g., a frequency band of 13.56 MHz) and may read data stored in theactivated tag 700.

The NFC reader 710 included in the mobile terminal 200 may read datafrom an NFC tag that is located within a certain distance, for example,about 4 cm, from the mobile terminal 200.

Therefore, when the mobile terminal 200 touches the display device 100and approaches to within 4 cm from an NFC tag disposed in the rear ofthe display unit 180, the NFC reader 710 included in the mobile terminal200 may receive information stored in the NFC tag.

For example, as illustrated in FIG. 32, when the mobile terminal 200touches the display device 100, the NFC reader 200 included in themobile terminal 200 may read information that is stored in a pluralityof NFC tags 701 to 706, disposed in a touch region R of the mobileterminal 200, among a plurality of NFC tags.

The mobile terminal 200 may check manufacturer information, a modelname, a model number, and a serial number that are read with the NFCreader 710, and detect that the mobile terminal 200 has touched thedisplay device 100.

In order to detect the touch of the mobile terminal 200 by using the NFCtag 700 included in the display device 100 and the NFC reader 710included in the mobile terminal 200, as described above, a distance fromthe front of the display device 100 to the NFC tag 700 may be set to acertain distance (e.g., 4 cm) within which data stored in the NFC tag700 may be read or a value slightly greater than the certain distance.

That is, as illustrated in FIG. 31, when the NFC tag 700 is disposed inthe rear of the display unit 180, the thickness (e.g., a sum of thethicknesses of the display panel and backlight unit) of the display unit180 may have the certain distance or a value slightly greater than thecertain distance.

Moreover, the mobile terminal 200 may detect the touch location with atag index that is read with the NFC reader 710.

For example, the mobile terminal 200 touching the display device 100 mayread a tag index from each of the NFC tags 701 to 706 disposed in thetouch region R, and detect a location, touched by the mobile terminal200, with coordinates (x, y) of the read tag indexes.

As shown in Table 9, information regarding the detected touch locationof the mobile terminal 200 may be stored in the storage unit 170 of thedisplay device 100, with location coordinates of the NFC tag 700.

TABLE 9 Terminal ID Orientation Touch location 10 Front (10, 50)

Data stored in the NFC tags 700 may be a plurality of UPnP devicedescription parameters, respectively. When the mobile terminal 200touches the display device 100, the mobile terminal 200 may detectwhether the touch occurs and a touch location by using the UPnP devicedescription parameters that are read from the NFC tag 700 with the NFCreader 710.

The UPnP device description parameters may be used to facilitate theabove-described registration and authentication operations for themobile terminal 200.

Referring to FIG. 33, the display device 100 may read data (e.g., theUPnP device description parameters), stored in an RFID tag 730 of themobile terminal 200, with a plurality of RFID readers 720 to 723disposed at an edge portion.

The display device 100 may compare the intensities of respective RFsignals received from the RFID readers 720 to 723 to detect the touchlocation of the mobile terminal 200.

For example, when the intensities of respective RF signals received fromthe RFID readers 720 to 723 are the same, the touch location of themobile terminal 200 may be determined as the center portion of thedisplay device 100, and as the intensity of an RF signal received from aspecific RFID reader becomes greater, the touch location may be moved tobe adjacent to a corresponding RFID reader.

Referring to FIG. 34, an RFID reader 440 is included in the displaydevice 100, and the RFID tag 730 is included in the mobile terminal 200.Therefore, the display device 100 and the mobile terminal 200 mayperform the operations that have been described above with reference toFIGS. 31 to 33, respectively.

The display device 100 may receive a plurality of sensing values (e.g.,information regarding the orientation of the mobile terminal 200 or anoutput value of a sensor for sensing the orientation) measured by thesensing unit 240 of the mobile terminal 200, in the RFID near fieldwireless communication scheme that has been described above withreference to FIGS. 31 to 33.

FIGS. 35 to 41 are views illustrating further implementations of each ofa mobile terminal and a display device that are configured to perform amethod of transmitting and receiving data. A touch location andorientation of the mobile terminal may be detected with a catadioptriccamera included in the display device 100.

Referring to FIG. 35, a plurality of catadioptric cameras 800 to 830 maybe installed at an edge portion of the display device 100.

The catadioptric camera 800, as illustrated in FIG. 36, may include acatadioptric reflector 801 having a low profile, and a camera 802 havinga special lens system. The catadioptric reflector 801 may be implementedwith a convex mirror having a certain focal length.

The display device 100 may acquire an image of the screen portion fromfour different perspectives, with the catadioptric cameras 800 to 830having the above-described configuration, and thus may secure a field ofview as illustrated in FIG. 37.

Referring to FIG. 38, when a user moves the front of the mobile terminal200 toward the display device 100 and the mobile terminal 200 ispositioned within a field of view of one or more of the catadioptriccameras 800 to 830 illustrated in FIG. 37, cameras 212 f and 212 rrespectively disposed in the front and rear of the mobile terminal 200may operate, and thus, the display device 100 and the mobile terminal200 may recognize each other with the catadioptric cameras 800 to 830and the front camera 212 f.

In this case, the mobile terminal 200 may determine the orientation ofthe mobile terminal 200 as the front by using the image of the displaydevice 100 that has been acquired with the front camera 212 f, or thedisplay device 100 may determine the orientation as the front by usingthe image (e.g., a front shape of the mobile terminal 200) of the mobileterminal 200 that has been acquired with one or more of the catadioptriccameras 800 to 830.

Referring to FIG. 39, when the user moves the rear of the mobileterminal 200 toward the display device 100 and the mobile terminal 200is positioned within a field of view of one or more of the catadioptriccameras 800 to 830, the display device 100 and the mobile terminal 200may recognize each other with the catadioptric cameras 800 to 830 andthe rear camera 212 r.

In this case, the mobile terminal 200 may determine the orientation ofthe mobile terminal 200 as the rear by using the image of the displaydevice 100 that has been acquired with the rear camera 212 r, or thedisplay device 100 may determine the orientation as the rear by usingthe image (e.g., a rear shape of the mobile terminal 200) of the mobileterminal 200 that has been acquired with one or more of the catadioptriccameras 800 to 830.

Referring to FIG. 40, when the user moves the side of the mobileterminal 200 toward the display device 100 and the mobile terminal 200is positioned within a field of view of one or more of the catadioptriccameras 800 to 830, the display device 100 and the mobile terminal 200may recognize each other with the catadioptric cameras 800 to 830, thefront camera 212 f, and the rear camera 212 r.

In this case, the mobile terminal 200 may determine the orientation ofthe mobile terminal 200 as the side by using the image of the displaydevice 100 that has been acquired with the front camera 212 f and therear camera 212 r, or the display device 100 may determine theorientation as the side by using the image (e.g., a front shape and rearshape of the mobile terminal 200) of the mobile terminal 200 that hasbeen acquired with one or more of the catadioptric cameras 800 to 830.

Alternatively, at a time when the mobile terminal 200 is positionedwithin a field of view of one or more of the catadioptric cameras 800 to830, the magnetometer, accelerometer, proximity sensor, gyroscopesensor, ambient light sensor, or colorimeter included in the mobileterminal 200 may operate in conjunction with the catadioptric cameras800 to 830, and thus, the orientation may be detected by theabove-described scheme.

When the mobile terminal 200 touches the display device 100, the displaydevice 100 may detect the orientation of the mobile terminal 200 byusing an image that is acquired with the catadioptric cameras 800 to830.

Referring to FIG. 41, a distance d(x) from the optical axis of thecatadioptric camera 800 to a touch point P may be calculated as adistance ‘x’ on an image plane and an angle (θ) of a line vertical tothe convex mirror.

As described above, when distances d(x) to the touch point P have beencalculated with the four catadioptric cameras 800 to 830 respectivelydisposed at the edge portions of the display device 100, the displaydevice 100 may determine the touch location of the mobile terminal 200with the calculated distances d(x).

In the above description, various implementations of a method thatdetects whether the mobile terminal 200 touches the display device 100and the touch location and orientation of the mobile terminal 200 havebeen described, but are not limited thereto.

For example, the display device 100 may detect whether the mobileterminal 200 touches the display device 100 and the touch location ofthe mobile terminal 200 by using a plurality of light sources (e.g., IRLED emitters) disposed at respective edge portions and a plurality of IRphotodetectors.

The various methods described herein may be manufactured as programsexecutable in computers and be stored in a computer readable recordingmedium. Examples of the computer readable recording medium includeread-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetictapes, floppy disks, optical data storage devices, and carrier waves(such as data transmission through the Internet).

The computer readable recording medium can be distributed overnetwork-coupled computer systems so that the computer readable code isstored and executed in a distributed fashion. Also, functional programs,codes, and code segments for accomplishing the various methods describedherein can be easily construed by programmers skilled in the art towhich the various methods pertain.

By designating a region of the screen of a display device correspondingto the touch location of a mobile terminal as a region for controllingthe transmission/reception of data from/to the mobile terminal, anintuitive user interface may be provided that may allow a user to easilycontrol the transmission/reception of data between the display deviceand the mobile terminal.

Although various implementations have been described with reference to anumber of illustrative embodiments thereof, it should be understood thatnumerous other modifications and embodiments can be devised by thoseskilled in the art that will fall within the spirit and scope of theprinciples of this disclosure. More particularly, various variations andmodifications are possible in the component parts and/or arrangements ofthe subject combination arrangement within the scope of the disclosure,the drawings and the appended claims. In addition to variations andmodifications in the component parts and/or arrangements, alternativeuses will also be apparent to those skilled in the art.

1. A method of communicating data with a mobile terminal, the methodcomprising: establishing a communication connection with a mobileterminal; detecting a touch location on a display surface of the displaydevice at which the mobile terminal touches the display device;designating, at an area of the display surface of the display device, afirst region corresponding to the touch location; determining that anobject displayed on the display surface of the display device is movedinto the designated first region; and transmitting data, correspondingto the object, to the mobile terminal based on the determination thatthe object is moved into the designated first region.
 2. The methodaccording to claim 1, wherein detecting a touch location on a displaysurface of the display device at which the mobile terminal touches thedisplay device includes detecting that the mobile terminal touches thedisplay device for at least a threshold amount of time.
 3. The methodaccording to claim 1, wherein: detecting a touch location on a displaysurface of the display device at which the mobile terminal touches thedisplay device includes detecting that the mobile terminal touches aregion of the display surface of the display device where no object isdisplayed, and designating a first region, corresponding to the touchlocation, to the mobile terminal on the display surface of the displaydevice includes designating, based on detecting that the mobile terminaltouches a region of the screen of the display device where no object isdisplayed, a first region, corresponding to the touch location, to themobile terminal on the display surface of the display device, and notdesignating an area of the display surface as the first regioncorresponding to the touch location when detecting that the mobileterminal touches a region of the screen of the display device where anobject is displayed.
 4. The method according to claim 1, furthercomprising storing a location of the designated first region andidentification information of the mobile terminal in association witheach other.
 5. The method according to claim 1, further comprisingdisplaying a graphical representation corresponding to the mobileterminal in the first region on the display surface of the displaydevice.
 6. The method according to claim 5, further comprising detectingthat the communication connection between the mobile terminal and thedisplay device is ended, and removing, based on detecting that thecommunication connection between the mobile terminal and the displaydevice is ended, the graphical representation of the mobile terminalfrom the display surface of the display device.
 7. The method accordingto claim 5, further comprising determining whether the communicationconnection between the mobile terminal and the display device is activeor inactive, wherein displaying a graphical representation of the mobileterminal in the first region on the display surface of the displaydevice includes displaying a first graphical representation of themobile terminal when it is determined that the communication connectionbetween the mobile terminal and the display device is active anddisplaying a second graphical representation of the mobile terminal whenit is determined that the communication connection between the mobileterminal and the display device is inactive.
 8. The method according toclaim 5, further comprising: receiving a user input corresponding to acommand to change a size of the displayed first region, and updating,based on the received user input, the display of the graphicalrepresentation to change the size of the displayed first region.
 9. Themethod according to claim 1, further comprising: detecting a touchlocation on a display surface of the display device at which a secondmobile terminal touches the display device; designating, at an area ofthe display surface of the display device, a second region correspondingto the touch location of the second mobile terminal; determining that asecond object displayed on the display surface of the display device ismoved into the designated second region; and transmitting data,corresponding to the second object, to the second mobile terminal basedon the determination that the second object is moved into the designatedsecond region.
 10. The method according to claim 9, further comprising:determining that the first and second regions at least partially overlapwith each other; determining that a third object displayed on thedisplay surface of the display device is moved into an area of overlapbetween the first region and the second region; transmitting datacorresponding to the third object to the first and second mobileterminals based on the determination that the third object is moved intothe area of overlap between the first region and the second region. 11.The method according to claim 1, wherein detecting the touch location onthe display surface of the display device at which the mobile terminaltouches the display device includes detecting the touch location on thedisplay surface of the display device at which the mobile terminalphysically contacts the display device.
 12. The method according toclaim 1, further comprising: determining that a rear of the mobileterminal is touching the display device, wherein detecting touchlocation on a display surface of the display device at which the mobileterminal touches the display device includes detecting a location atwhich the rear of the mobile terminal touches the display device, therear of the mobile terminal being the side of the mobile terminalopposite a display interface of the mobile terminal.
 13. The methodaccording to claim 1, further comprising: determining that a front ofthe mobile terminal is touching the display device, the front of themobile terminal being the side of the mobile terminal corresponding to adisplay interface of the mobile terminal, wherein detecting touchlocation on a display surface of the display device at which the mobileterminal touches the display device includes detecting a location atwhich the rear of the mobile terminal touches the display device; andreceiving, by utilizing the designated first region, data from themobile terminal.
 14. The method according to claim 1, wherein detectinga touch location on a display surface of the display device at which themobile terminal touches the display device includes determining thetouch location on the display surface of the display device at which themobile terminal touches the display device by using at least one of atouch sensor, an Near Field Communication (NFC) tag, or a catadioptriccamera included in the display device.
 15. A display device comprising:a display unit configured to display a plurality of objects on a screen;a control unit configured to: detect a touch location on a displaysurface of the display device at which a mobile terminal touches thedisplay device; designate, at an area of the display surface of thedisplay device, a first region corresponding to the touch location; anddetermine that an object displayed on the display surface of the displaydevice is moved into the designated first region; and a communicationinterface configured to establish a communication connection with themobile terminal and transmit data, corresponding to the object, to themobile terminal based on the determination that the object is moved intothe designated first region.
 16. The display device according to claim15, wherein: the control unit being configured to detect a touchlocation on a display surface of the display device at which the mobileterminal touches the display device includes the control unit beingconfigured to detect that the mobile terminal has touched a region ofthe display surface of the display device where no object is displayed,and wherein the control unit being configured to designate a firstregion, corresponding to the touch location, to the mobile terminal onthe display surface of the display device includes the control unitbeing configured to designate, based on detecting that the mobileterminal touches a region of the screen of the display device where noobject is displayed, a first region, corresponding to the touchlocation, to the mobile terminal on the display surface of the displaydevice, and not designate an area of the display surface as the firstregion corresponding to the touch location when detecting that themobile terminal touches a region of the screen of the display devicewhere an object is displayed.
 17. The display device according to claim15, further comprising a storage unit configured to store a location ofthe designated first region and identification information of the mobileterminal in association with each other.
 18. The display deviceaccording to claim 15, wherein the display unit is configured to displaya graphical representation corresponding to the mobile terminal in thefirst region on the display surface of the display device.
 19. Thedisplay device according to claim 18, wherein: the communicationinterface is configured to detect that the communication connectionbetween the mobile terminal and the display device is ended, and thecontrol unit is configured to remove, based on detecting that thecommunication connection between the mobile terminal and the displaydevice is ended, the graphical representation of the mobile terminalfrom the display surface of the display device.
 20. The display deviceaccording to claim 18, wherein: the communication interface isconfigured to determine whether the communication connection between themobile terminal and the display device is active or inactive; and thedisplay unit being configured to display a graphical representation ofthe mobile terminal in the first region on the display surface of thedisplay device includes the display unit being configured to display afirst graphical representation of the mobile terminal when it isdetermined that the communication connection between the mobile terminaland the display device is active and displaying a second graphicalrepresentation of the mobile terminal when it is determined that thecommunication connection between the mobile terminal and the displaydevice is inactive.